On Tuesday, August 30, 2016 7:22:25 AM CEST Michal Novotny wrote: > On Mon, Aug 29, 2016 at 3:33 PM, Pavel Raiskup <prais...@redhat.com> wrote: > > * You can lower the BE<->FE traffic, and significantly lower IO on > > front-end --> because then you can first allocate appropriate VM, and > > right after that assign job (not vice versa: take job, then try to > > take VM and possibly defer the job). > > > > You wouldn't exactly allocate appropriate VM. Rather, some VMs were > preallocated (ideally taking all the available resources and all busy > building) and you would acquire a new build job of the fitting arch when one > of them became free.
That's what I meant, but now it is correctly worded. > I am not sure if we can completely remove job deferring because it is good for > cases when a backend took a job it cannot (currently) handle. > That, in theory, shouldn't happen with this approach of taking jobs only > if there is an available VM of the job's required arch but you never > know and deferring is better than dropping. .. though s/defer/resubmit/ sounds better. Currently it looks like such error-handling is not implemented anyway, we drop the build and it is re-submitted after some deadline. Also the "defer" action would be rather about trivial "running" -> "pending" transition. Pavel _______________________________________________ copr-devel mailing list copr-devel@lists.fedorahosted.org https://lists.fedorahosted.org/admin/lists/copr-devel@lists.fedorahosted.org
